Cleaning:
A simple manoeuvre, but quite effective. Meticulously washing dishes takes time.
Inviting your mother over for Lunch:
Even when she lives 3 hrs away. She should be here in 34 minutes.
Take photos of a project you haven't finished:
More commonly referred to as "Work in Progress"'s, these can be a handy escape to feeling like you're being creative and doing something vaguely useful, while being completely pointless. An extra hour can be added if taken to the editing and blogging stage.
If you follow these three handy steps you successfully avoid all thesis reading on a Monday.